291207825

素因数分解:

$3^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:268

約数の個数: 96

約数和(自身を含む): 558694400

約数和(自身を除く): 267486575

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 79, 127, 129, 135, 215, 225, 237, 381, 387, 395, 635, 645, 675, 711, 1075, 1143, 1161, 1185, 1905, 1935, 1975, 2133, 3175, 3225, 3397, 3429, 3555, 5461, 5715, 5805, 5925, 9525, 9675, 10033, 10191, 10665, 16383, 16985, 17145, 17775, 27305, 28575, 29025, 30099, 30573, 49149, 50165, 50955, 53325, 81915, 84925, 85725, 90297, 91719, 136525, 147447, 150495, 152865, 245745, 250825, 254775, 270891, 409575, 431419, 451485, 458595, 737235, 752475, 764325, 1228725, 1294257, 1354455, 2157095, 2257425, 2292975, 3686175, 3882771, 6471285, 6772275, 10785475, 11648313, 19413855, 32356425, 58241565, 97069275, 291207825]

約数ペア:

[(1, 291207825), (3, 97069275), (5, 58241565), (9, 32356425), (15, 19413855), (25, 11648313), (27, 10785475), (43, 6772275), (45, 6471285), (75, 3882771), (79, 3686175), (127, 2292975), (129, 2257425), (135, 2157095), (215, 1354455), (225, 1294257), (237, 1228725), (381, 764325), (387, 752475), (395, 737235), (635, 458595), (645, 451485), (675, 431419), (711, 409575), (1075, 270891), (1143, 254775), (1161, 250825), (1185, 245745), (1905, 152865), (1935, 150495), (1975, 147447), (2133, 136525), (3175, 91719), (3225, 90297), (3397, 85725), (3429, 84925), (3555, 81915), (5461, 53325), (5715, 50955), (5805, 50165), (5925, 49149), (9525, 30573), (9675, 30099), (10033, 29025), (10191, 28575), (10665, 27305), (16383, 17775), (16985, 17145)]